影响切工的其他因素
对称性
当一颗钻石刻面匀称、整齐，且钻石对称性好，则它的亮度和璀璨效果才可能达到最佳。对称性差包括刻面没有准确对齐、刻面形状不标准、或是台面未居中等问题。
抛光度
After a diamond is cut, each facet must be polished. The process can leave surface scratches or marks, which are like streaks left behind after a car is waxed. If a diamond has no scratches or very minor ones, the polish is of a high degree. Scratches, lines, burn markscreated by excessive heat, or rough girdles could downgrade the polish rating of a diamond and if significant, could affect the overall cut grading.
对称性
冠部与亭角的关系对钻石的外观有影响。钻石的亭角和深度必须正好，才能最佳地捕获和反射光线。稍陡的亭角可以靠较浅的冠角来弥补，反之亦然。
当亭部很深时，钻石的整个台面外表会显得很暗，形成了所谓的“钉头”。腰部较浅的钻石，往往会由于会由于腰部反射，在台面上产生一种“鱼眼”效果。
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